Finding the Fourth Proportional to 66,018.38, 91,105.49 and 37,724.00

Step by Step Solution

1. Step 1: Write the proportion equation
   66,018.38 : 91,105.49 = 37,724.00 : x
2. Step 2: Convert to fraction form
   66,018.38/91,105.49 = 37,724.00/x
3. Step 3: Cross multiply
   66,018.38x = 91,105.49 × 37,724.00
4. Step 4: Simplify right side
   66,018.38x = 3,436,863,143.54
5. Step 5: Solve for x
   x = 3,436,863,143.54/66,018.38
6. Step 6: Final answer
   x = 52,059.19